Have work items link to parents so that a value structure emerges, based on cost. Priority (of same level items) will offset value.

• Level 1 - Small (days): 1, 2, 3, 5, 8
• Level 2 -Medium (weeks): 10, 20, 30, 50, 80
• Level 3 -Large (months): 100, 200, 300, 500, 800
• Level 4 -Extra large (quarters): 1000, 2000, 3000, 5000, 8000

Value tree:

• Parent: contributes to (manually set) 1:1
• Child: completed by (automatically set) 1:N
• Orphan (no parents): “top level”
• Leaf (no children): “bottom level”
• Inbound dependency: waiting for (manually set)
• Outbound dependency: required by (automatically set)
• Lock-step release (breaking changes): released with (manually set)
• Impediment: blocked by (manually set)